Improvement in looms for weaving suspender-webbing



Y ,2`Sheets---SheeTL c. H. cHAPMAN-5 Loom -for We'avingSuspender-webbing.

N0. 160,749 P'atented March16,l875.

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THE GRAPHIC CD.PMOT0.L|TM.39&41 PARK PLAGEJLY.

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webbing. Patented March15,1a75.

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Lnm'fdr Weaving Suspender THE GRAPHIC C0.PHOT0 -L|TH.39 6&4] PARKPLAUEN-Y.

NITED STATES PAT CHARLES H. CHAPMAN, OF SHIRLEY, MASSACHUSETTS.

IMPROVEMENT IN LOOMS FOR WEAVING SUSPENDER-WEBBING.

Specication forming part of Letters Patent No. 160, 7&9, dated March16,1875 application led January 20, 1875.

To all whom it may concern Be it known that I, CHARLES HENRY CHAP- MAN,of Shirley, of the county of Middlesex and State of Massachusetts, haveinvented certain new and useful Improvements in Looms forWe-avingSuspender or various other kinds of Webbing; and I do hereby declare thesame to be fully described in the following specification, andrepresented in the accompanying drawings, of whichv Figure l is a topview, Fig. 2 a front elevation, Fig. 3 a side elevation, and Fig. 4 alongitudinal and vertical section, of a loom with my improvement.

Such other figures as are necessary to the illustration of my inventionare hereinafter referred to and explained.

The kind of loom on which my improvements are based is one provided witha needle to carry a filling-thread, and a shuttle to operate therewith,and lock said filling-thread at one selvage of the webbing by a threadborne by the said shuttle or a spool therein.

In carrying out my invention I add to the needle carrier an auxiliaryneedle to bear an auxiliary fillingthread, and to operate with theshuttle and primary needle, the nature of my invention consisting mainlyas follows: First, in the combination of the auxiliary needle with themain needle, the lay, and the shuttle, all being provided with mechanismfor operating them, substantially as hereinafter described. Second, inthe combination of a loom-harness, provided with two eyes to eachheddle, with the main and auxiliary needles, the lay, and the shuttle,to operate as described. Third, in the combination of ashuttle-thread-guide, substantially as explained, with the needle orVneedles, the shuttle, and the lay, provided with mechanism for operatingthem, as set forth. Fourth, in the combination of a shuttle-presser,substantially as described, with the shuttle, its race, and carrier,arranged in manner and to operate as set forth. Fifth, in a stop-motion,substantially as hereinafter described, applied to the warps andlling-threads. Sixth, in the shuttle-carrier, as provided with abearinghorn to support it by the race, and also with a spring to pressor draw the carrier toward Seventh, in the shuttle-carrier the shuttle.

actuating-lever, provided with a spring to extend from it into the notchin the carrier, such spring being for the purpose hereinafter specified.

In the drawings, A denotes the loom-frame, and B the lay, the latterbeing provided, as usual in looms, with a reed, ai. C is the breastbeam,and D and E are the main and auxiliary needles, both of which projectfrom one needle-arm, F, having mechanism, as usual, for imparting to itits necessary intermittent reciprocating movements. This needle-arm atits foot is pivoted to the frame A, and provided with a spring, b, toeffect its retraction, its advance being produced by a lever, c,projecting into or under it, as shown. This lever c is pivoted at itsrea-r upon a shaft, d, and has applied to it a cam, e, for moving itupward, such cam being fixed on the driving-shaftf. Each needle has aneye near its inner end, the lling-threads g h, which proceed from spoolsZZ, arranged as shown, being led through these eyes, and also throughguide-eyes lo lo projecting from the needle-arm. Arranged vertically andnear the lay, as represented, is the shuttlc-race G carrying the shuttleH, the latter being arranged to play in a vertical line, and to be movedup and down by a carrier or actuator, I, which slides upon a stationaryvertical rod, m, arranged as shown. There is applied to such carrier Iand its actuating-lever a, that extends through a notch, o, in thecarrier, a spring, p, to draw the carrier toward the shuttle. There isalso applied to the carrier a horn, q, extending from it up against theshuttle-race.

Fig. 5 is a front view of the shuttle, its race and carrier. Fig. 6 is ahorizontal section of the same, showing the carrier-actuating 1ever nand the spring p. It also exhibits the race and shuttle as provided withdovetailed lips r r s s for holding the shuttle in connection with therace arranged vertically. Fig. 7- is a top view, and Fig. 8 an end view,of the shuttle.

By taking hold of the carrier I, and pulling it away from the race farenough, the shuttle may be easily extracted from, or applied to, therace as circumstances may require. The bearing-horn q, by restingagainst the race, enables the shuttle to play with sufficient loosenessin the carrier for the shuttle to passy through the loops of the threadsof the needles.

There is applied to the lever n a spring, t, to extend from it in manneras shown, and to bear against the bottom vof the notch o of theshuttle-carrier. The said spring accom modates itself and the lever tothe wear of both the lever and the notch, and thus prevents noise thatmight result were the spring not used.

There projects from the shuttle-race and down in front of it, in manneras shown, a shuttle presser or holder, K, it being a spring, shaped andarranged as represented. Its object is to press against the shuttle, andhold itfrom dropping down in the carrier atthe time the filling threadsor loops may be passing Athe shuttle.

A wire, L, fastened to the frame A, near the inner end of thebreast-beam, extends inward beyond the said breast-beam, and inclinesdownward in manner as shown in Fig. et. This wireItermthe shuttle-threadguide, its purpose being to guide the shuttlethread to, and hold it upto, the selvagewhile the needle may be in the act of being retracted,and the layis beating up. Were the said guide dispensed with, theshuttle-thread would be liable to be loose, or to kink or knot at theselvage of the fabric.

Each of the harnesses M M has each of its heddles u or u provided withtwo eyes, e w, instead of one only, as in ordinary harnesses, these eyesbeing disposed at short distances apart. The two harnesses are tooperate with four sets, x y z al, of warp-threads, which, for thereception of the needles, make two sheds,77 and all proceed, from oneyarn-roller, N, to and over the breast-beam to the cloth-roller o.

-In applying the four sets or two pairs of warps to the two harnesses,each heddle of each harness is to receive a warp-thread from each of thetwo pairs, all as shown in Fig. 9, in which x g/ z al exhibit the foursets of warps, u u being the next adjacent heddles of the two harnesses.The threads of the upper sets x z run through the eyes o fw of theheddles of one harness, the threads of the other sets y al being runthrough the eyes t w of the heddles of the other harness. By thus makingeach heddle with two eyes, o w, but two harnesses become necessary forthe four sets of warps, whereas, with but one eye to a heddle, fourharnesses would be required. My improvement in the harness thus enablesme to dispense with two harnesses and the machinery to operate them, aswould be required in case of there being but one eye to each heddle.Each harness, as in other looms, is to be provided with the usualmechanism for operating it.

The several warp-threads, on their passage from the warp-roller to andthrough the reed, pass across guide-rollers b, c', d', el, and j",arranged as represented, each thread being led between the prongs g g ofone of two series, P P, of angular levers la', there being one of saidlevers to each warp-thread, and also one to each filling-thread. Thelevers of each set are pivoted on one of two rods, t" k, arranged asshown, the tails or lower arms of the levers being disposed in slotsmade down in a guide and stop-bar or shoulder-bar, l. With these leversa reciprocating vibrator, R, is used. It consists in part of two rods, mm', extended horizontally from and between two arms, n a', arranged asshown, and pivoted to a frame, o', that turns on the shaft d, and has anarm, q, extended from it, and projecting under and against one of theharness-cams, such cam being shown at o". The weight of the vibratorsuffices to keep its arm up to the cam. The cam while in revolutionimparts to the vibrator up and down motions. An arm, s, extends from oneofthe arms n n to and under a latch, t', arranged as shown in Fig. l.This latch when down serves, with a shoulder, v, on a slide-rod, u, tohold the rod back or from being pressed forward by a spring, w', appliedto it. The said slide-rod, arranged as shown, rests at its front endagainst the latch S of a shipper, T, that serves to shift rthedrivingbelt from a fast pulley, x', to a loose pulley, yf, on the driving-shaft of the machine.

The warp-threads while being drawn forward operate, by their frictionagainst the prongs of the sets of levers P P, to draw the said leversforward in a manner to raise up their tails.

Should a warp-thread break, the lever h', through which it may pass,will forthwith fall back and down to the bottom of the slit in theshoulder-bar, the weight of the tail of the lever causing such fall totake place. The lever then becomes a cam to move the vibrator R (duringits next advance movement) in a manner to cause its arm s to force thelatch t out of engagement with Athe slide-rod u. As soon as thisl lattermay take place, the spring w will shoot forward the slide-rod andunlatch the shipper, so as to enable it to be moved to shift the beltfrom the fast to the loose pulley, and thereby cause a stoppage of theloom.

In the operation of this loom the two needles are moved forward throughthe two sheds of the warps, after which the shuttle descends, and goesthrough both loops ofthe threads of the needles. Next the needles aredrawn back out of the warps, and the shuttle rises up, after which thelay beats 'up and drives both filling-threads up into their warps. Nextthe harnesses change, such harnesses, needles, shuttle, and lay beingprovided with the usual mechanisms for so operating them.

In making suspender or other webbing it is customary to use with thewarps, as described, what are termed binding-'warps, to be operated byother harnesses; but as these constitute no part of my invention, nofurther mention of them becomes herein necessary.

The drawings show much ofthe mechanism for operating the harnesses; butas this also is no part of my invention, but such as is in common-use inother looms of the kind, it is not necessary to describe it.

By having the eXtra needle combined with the main needle and its carrierand the shuttle, I am enabled to accomplish double the Work in the sametime that I can With a single needle, and thus I accomplish a veryimportant result.

I claim as my invention in the described loom as follows, viz:

l. The combination of the auxiliary needle E With the main needle D, thelay B, and the shuttle H, all being provided With mechanism foroperating them, substantially as described.

2. The combination of the harnesses M, formed with tWo eyes in eachheddle, with the main and auxiliary needles D E, the lay B, and theshuttle H, to operate as set forth.

3. The combination of the shuttle-thread guide L With the needle orneedles, the shuttle, and the lay, provided With mechanism for operatingthem, as set forth.

4. The combination of the shuttle-presser K with the shuttle H and itsrace G and carrier I, arranged and to operate as described.

5. The stop motion, substantially as described, composed of the seriesof furcated levers h', the shoulder-bar Z', the reciprocating vibratorB, its operative arm s', the latch t', the slide-rod u', shoulder c',the spring w', and the shipper-latch S, all arranged to operatesubstantially as specified.

6. The shuttle-carrier I, provided with the bearing-horn g, and With thespring p, to draw the carrier toward the shuttle.

7. The shuttle-carrier actuating-lever u, provided With the spring t, toextend from it, as shown, into the notch o in the shuttle-carrier I, forthe reception of said lever.

CHARLES H. CHAPMAN.

Witnesses R. H. EDDY, J. R. SNoW.

